Helper classes for specific display sizes only?

[kempdo]

I wonder if it’s possible to apply helper classes for specific display widths?

For example, I want to apply the classes pll and prl to a section. It looks good on desktop. But on mobile that gives too much padding. So I’d like to apply these helpers only to specific device widths.

Is there a way to do this (apart from writing custom media queries in my stylesheet)?

Thanks
Dan

[diego]

I am interested in this as well.

I don’t know where to find the helper classes in the documentation, but I believe that I may have seen something similar to this in the helper classes page, and I am looking to hide some text on smaller devices.